LCD Display, Electronic Device, LCD Display Manufacturing Method

ABSTRACT

A liquid crystal display (LCD) includes several transparent material layers and several non-transparent material layers that are disposed in a stacked mode. The LCD also has a local transparent region, and no non-transparent material is applied to the several non-transparent material layers in the local transparent region. This forms a transparent channel in the local transparent region along a stacking direction. An optical component is completely or partially disposed in the transparent channel of the LCD display. The optical component may be a camera, an ambient light sensor, an optical fingerprint sensor, or another component disposed under the display by using the local transparent region on the LCD display.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.17/358,821, filed on Jun. 25, 2021, which is a continuation of U.S.patent application Ser. No. 16/608,560, filed on Oct. 25, 2019, now U.S.Pat. No. 11,048,294, which is a national stage of InternationalApplication No. PCT/CN2017/090090, filed on Jun. 26, 2017, which claimspriority to Chinese Patent Application No. 201710279141.5, filed on Apr.25, 2017. All of the aforementioned applications are hereby incorporatedby reference in their entireties.

TECHNICAL FIELD

The present invention relates to the field of an LCD display, and inparticular, to an LCD display, an electronic device, and an LCD displaymanufacturing method.

BACKGROUND

Currently, an electronic device with a large-size liquid crystal display(liquid crystal display, LCD) is more popular among consumers. However,a screen-to-body ratio of the electronic device is still limited incurrent level and does not meet consumers' expectations, andconsequently, an appearance of the electronic device is not aesthetic.As competition of electronic devices is increasingly intense, ifelectronic devices have almost same functions, an appearance becomes animportant factor for purchasing an electronic device by a consumer.Therefore, increasing a screen-to-body ratio of an electronic device isa mainstream of electronic device manufacturers in the future.

SUMMARY

Embodiments of the present invention provide an LCD display, anelectronic device, and an LCD display manufacturing method, to increasea screen-to-body ratio of an electronic device.

According to a first aspect, an embodiment of the present inventionprovides an LCD display, where the LCD display is disposed in anelectronic device. The LCD display includes several transparent materiallayers and several non-transparent material layers that are disposed instack mode, and no non-transparent material is applied to eachnon-transparent material layer in a local transparent region on the LCDdisplay (in other words, no non-transparent material is processed in thelocal transparent region at the several non-transparent materiallayers), to form a transparent channel in the local transparent regionalong a stacking direction. A component body of an optical componentmatching the LCD display is completely or partially disposed in thetransparent channel of the LCD display.

According to this embodiment of the present invention, nonon-transparent material is retained in the local transparent region ateach non-transparent material layer on the LCD display to form thetransparent channel in the local transparent region along the stackingdirection, the component body of the optical component is completely orpartially disposed in the transparent channel, and the component body ofthe optical component is completely or partially disposed on the LCDdisplay, so that a larger size of the LCD display can be formed on theelectronic device, a screen-to-body ratio of the electronic device isimproved, and visual experience of the electronic device is furtherimproved.

In a possible embodiment, because the non-transparent material isnon-transparent, to increase a transmittance in the local transparentregion, a position, at the non-transparent material layers on the LCDdisplay, to which no non-transparent material is applied needs to befilled with a transparent filler or a liquid crystal material. Theposition, at the non-transparent material layers on the LCD display, towhich no non-transparent material is applied is filled with thetransparent filler or the liquid crystal material, so that lighttransmission of the LCD display is improved, and air gaps generatedafter no non-transparent material is applied to the severalnon-transparent materials in the local transparent region can beeliminated. In addition, an existing liquid crystal may be used as theliquid crystal material for filling without adding a device or a processof another filling material.

In a possible embodiment, no transparent filler or liquid crystalmaterial fills the position, at the non-transparent material layer onthe LCD display, to which no non-transparent material is applied. If notransparent filler or liquid crystal material fills the position, amanufacture process is easier, and a light transmission requirement ofsome optical components can also be satisfied.

In a possible embodiment, a material layer that is in the LCD displayand whose transmittance is less than a threshold is defined as anon-transparent material layer, and a material layer that is in the LCDdisplay and whose transmittance is greater than a threshold is definedas a transparent material layer. In this embodiment of the presentinvention, the transparent material layer includes a CG (cover glass)cover glass, a first LCD glass substrate, and a second LCD glasssubstrate, and the non-transparent material layer includes a firstpolarizer, a color film, a liquid crystal layer, a thin film transistor,a second polarizer, and a backlight module. The first polarizer, thefirst LCD glass substrate, the CF (color filter, CF), the liquid crystallayer, the thin film field effect transistor (or thin film transistor,TFT), the second LCD glass substrate, the second polarizer, and thebacklight module are sequentially formed on a lower surface of the CGcover glass. In addition, no non-transparent material is applied to eachof the first polarizer, the CF, the liquid crystal layer, the TFT, thesecond polarizer, and the backlight module in the local transparentregion. The transparent channel is formed in the local transparentregion along the stacking direction, so that the component body of theoptical component can be completely or partially disposed in thetransparent channel of the LCD display.

In a possible embodiment, in addition to the transparent material layer,there is further an ITO layer on a lower surface of the first LCD glasssubstrate and on an upper surface of the second LCD glass substrate. Anelectrical signal is applied to the ITO layer, to produce an electricfield for controlling liquid crystal deflection. An ITO layer is stillprocessed in several transparent channels, and is connected to acorresponding electrical signal. For example, an ITO layer in a regioncorresponding to a transparent channel on the first LCD glass substrateis also connected to an ITO layer in another region, and a sameelectrical signal is used; and an ITO layer in a region corresponding toa transparent channel on the second LCD glass substrate is connected toan independent control electrical signal, for example, a controlelectrical signal of one or several pixels in an original regioncorresponding to the transparent channel may be used. Voltage is appliedto the two ITO layers, to produce an electric field for controllingdeflection of a liquid crystal material in the transparent channels, sothat a large amount of light can pass through the regions correspondingto pin-through-holes, thereby achieving a local transparent effect.

In a possible embodiment, in addition to the transparent material layer,the transparent material further includes a first alignment film and asecond alignment film, the liquid crystal layer is formed between alower surface of the first alignment film and an upper surface of thesecond alignment film, and the first alignment film and the secondalignment film are used to provide a specific initial deflection to aliquid crystal in a case of no electric field. No alignment film isprocessed in the local transparent region on the first alignment filmand the second alignment film, and a liquid crystal material is drippedinto the region. Due to lack of restriction from the first alignmentfilm and the second alignment film, alignments of liquid crystalmaterials filled in a pin-through-hole are disordered, and the liquidcrystal materials are represented as isotropic materials. In this way, alarge amount of light can pass through a region corresponding to thepin-through-hole, thereby achieving a local transparent effect.

In a possible embodiment, no transparent material is applied to thefirst LCD glass substrate and the second LCD glass substrate in thelocal transparent region, to form the transparent channel in the localtransparent region along the stacking direction. In addition, after notransparent material is applied to the first LCD glass substrate and thesecond LCD glass substrate in the local transparent region, there is noneed to resolve a problem of air gaps between the first LCD glasssubstrate and the second LCD glass substrate. Further, the componentbody of the optical component may be disposed in a light channel,thereby reducing an overall thickness.

In a possible embodiment, a transparent material is processed in thetransparent channel at the several transparent material layers.

Specifically, the transparent material is processed in the transparentchannel at the several transparent material layers, to form thetransparent channel in the transparent region in stack mode. Noadditional manufacture process is needed, manufacture costs are reduced,and a full screen display effect is not affected. In addition, thetransparent material is processed in the local transparent region at theseveral transparent material layers, so that mechanical strength of theLCD display can be increased, and overall quality of the LCD display canbe improved.

In a possible embodiment, no transparent material is processed in thelocal transparent region on the CG cover glass, to form the transparentchannel in the local transparent region along the stacking direction. Notransparent material is processed in the local transparent region on theCG cover glass, to transmit voice to a component such as a receiver.

In a possible embodiment, a sealing material is applied to a peripheryof the transparent channel of the several non-transparent layers. Thesealing material is applied to the periphery of the transparent channelof the several non-transparent layers, so that there is no liquidcrystal in a region isolated by using the sealing material.Alternatively, a sealing material or an ink applied to a backside of theCG cover glass may be used to shelter a cabling region.

In a possible embodiment, a length-width ratio of a display dimension ofa rectangular display region without a transparent channel on the LCDdisplay is 16:9, 18:9, or another standard video format ratio.

According to a second aspect, an embodiment of the present inventionprovides an electronic device. The electronic device includes an opticalcomponent and an LCD display, and a component body of the opticalcomponent is completely or partially disposed in a transparent channelof the LCD display.

According to this embodiment of the present invention, a structure ofthe LCD display is designed to implement a local transparent region, sothat outside light can enter optical components such as a front-facingcamera, an ambient light sensor, an optical sensor, and an opticalfingerprint sensor that are disposed under the LCD display, and a fullscreen display effect is achieved in combination with layoutoptimization of components such as a camera and a receiver.

In a possible embodiment, the optical component includes at least one ofan optical fingerprint sensor, a camera, an optical proximity sensor, astructured light sensor, an infrared laser transmitter, and an ambientlight sensor.

According to a third aspect, an embodiment of the present inventionprovides an LCD display.

The LCD display includes several transparent material layers and severalnon-transparent material layers that are disposed in stack mode, and nonon-transparent material is processed in a local transparent region onthe LCD display at each non-transparent material layer, to form acomponent channel in the local transparent region along a stackingdirection. A fingerprint sensor is completely or partially disposed inthe component channel of the LCD display.

According to this embodiment of the present invention, nonon-transparent material is processed in the local transparent region ateach non-transparent material layer, to form the component channel inthe local transparent region along the stacking direction. Thefingerprint sensor is completely or partially disposed under thecomponent channel of the LCD display or partially disposed in thecomponent channel.

In a possible embodiment, the fingerprint sensor may be a capacitivefingerprint sensor. A display may be disposed on two sides of thecapacitive fingerprint sensor, to increase a screen-to-body ratio.

According to a fourth aspect, an embodiment of the present inventionprovides an LCD display manufacturing method. The LCD displaymanufacturing method includes: determining, based on a structural designof an entire machine, a local transparent region disposed on an LCDdisplay, where the LCD display includes several transparent materiallayers and several non-transparent material layers; cutting off anon-transparent material from each non-transparent material layer in thelocal transparent region, to form a transparent channel in the localtransparent region along a stacking direction, where a component body ofan optical component is completely or partially disposed in thetransparent channel of the LCD display; and combining the severaltransparent material layers and the several non-transparent materiallayers.

According to this embodiment of the present invention, opticalcomponents such as a camera, an ambient light sensor, an optical sensor,and an optical fingerprint sensor and another component may be disposedunder the display by using the transparent region on the LCD display,thereby greatly increasing a screen-to-body ratio and achieving a fullscreen effect.

In a possible embodiment, because the non-transparent material isnon-transparent, to form the local transparent region, a position, atthe non-transparent material layers on the LCD display, in which nonon-transparent material is processed needs to be filled with atransparent filler or a liquid crystal material. The position, at thenon-transparent material layers on the LCD display, in which nonon-transparent material is processed is filled with the transparentfiller or the liquid crystal material, so that light transmission of theLCD display is improved, and air gaps generated after no non-transparentmaterial is processed for the several non-transparent materials can beeliminated. In addition, an existing liquid crystal may be used as theliquid crystal material for filling without adding a device or a processof another filling material.

In a possible embodiment, the transparent material layer includes a CGcover glass, a first LCD glass substrate, and a second LCD glasssubstrate, and the non-transparent material layer includes a firstpolarizer, a color film, a liquid crystal layer, a TFT, a secondpolarizer, and a backlight module. The first polarizer, the first LCDglass substrate, the CF, the liquid crystal layer, the TFT, the secondLCD glass substrate, the second polarizer, and the backlight module aresequentially formed on a lower surface of the CG cover glass. Inaddition, no non-transparent material is processed in the localtransparent region at each of the first polarizer, the CF, the liquidcrystal layer, the TFT, the second polarizer, and the backlight module.The transparent channel is formed in the local transparent region alongthe stacking direction, so that the component body of the opticalcomponent can be completely or partially disposed in the transparentchannel of the LCD display.

In a possible embodiment, based on the designed transparent region,during manufacturing of the LCD display, no processing is performed inregions that are corresponding to the transparent region that are of theCF, the liquid crystal layer, the TFT, and metal routing, and processingis directly skipped by designing a mask. In addition, row-column cablingthat could exist and that is interrupted by a region corresponding tothe transparent region may be arranged around the region correspondingto the transparent region, and the cabling is separately led out from aleft/right side and an upper/lower side, thereby reducing an impact onan area of the transparent region.

In a possible embodiment, in addition to the transparent material layer,there is further an ITO layer on a lower surface of the first LCD glasssubstrate and on an upper surface of the second LCD glass substrate. Anelectrical signal is applied to the ITO layer, to produce an electricfield for controlling liquid crystal deflection. An ITO layer is stillretained in several transparent channels, and is connected to acorresponding electrical signal. For example, an ITO layer in a regioncorresponding to a transparent channel on the first LCD glass substrateis also connected to an ITO layer in another region, and a sameelectrical signal is used; and an ITO layer in a region corresponding toa transparent channel on the second LCD glass substrate is connected toan independent control electrical signal, for example, a controlelectrical signal of one or several pixels in an original regioncorresponding to the transparent channel may be used. Voltage is appliedto the two ITO layers, to produce an electric field for controllingdeflection of a liquid crystal material in the transparent channels, sothat a large amount of light can pass through the regions correspondingto pin-through-holes, thereby achieving a local transparent effect.

In a possible embodiment, in addition to the transparent material layer,the transparent material further includes a first alignment film and asecond alignment film, a liquid crystal is dripped between the firstalignment film and the second alignment film to form the liquid crystallayer, and the first alignment film and the second alignment film areused to provide a specific initial deflection to the liquid crystal in acase of no electric field. No alignment film is processed in the localtransparent region on the first alignment film and the second alignmentfilm, and a liquid crystal material is dripped into the region. Due tolack of restriction from the first alignment film and the secondalignment film, alignments of liquid crystal materials filled in apin-through-hole are disordered, and the liquid crystal materials arerepresented as isotropic materials. In this way, a large amount of lightcan pass through a region corresponding to the pin-through-hole, therebyachieving a local transparent effect.

In a possible embodiment, before the step of combining the severaltransparent material layers and the several non-transparent materiallayers, the method further includes: cutting off a transparent materialfrom the first LCD glass substrate and the second LCD glass substrate inthe local transparent region, to form the transparent channel in thelocal transparent region along the stacking direction. After severalpin-through-holes are disposed on the first LCD glass substrate and thesecond LCD glass substrate, there is no need to resolve a problem of airgaps generated between various material layers. In addition, thetransparent channels of the first LCD glass substrate and the second LCDglass substrate may be further used to dispose the optical component ina light channel, thereby reducing an overall thickness.

In a possible embodiment, a transparent material is retained in thetransparent channel at the several transparent material layers.

Specifically, the transparent material is retained in the transparentregion at the several transparent material layers, to form thetransparent channel in the transparent region in stack mode. Noadditional manufacture process is needed, manufacture costs are reduced,and a full screen display effect is not affected. In addition, thetransparent material is retained in the local transparent region at theseveral transparent material layers, so that mechanical strength of theLCD display can be increased, and overall quality of the LCD display canbe improved.

In a possible embodiment, before the step of combining the severaltransparent material layers and the several non-transparent materiallayers, the method further includes: in an actual manufacturing processof the LCD display, cutting off a transparent material from the CG coverglass in the local transparent region, to form the transparent channelin the local transparent region along the stacking direction. Atransparent channel of the CG cover glass is used to provide an acousticbasis for a receiver disposed under the LCD display.

In a possible embodiment, a sealing material is applied to a peripheryof the transparent channel of the several non-transparent layers. Thesealing material is applied to the periphery of the transparent channelof the several non-transparent layers, so that there is no liquidcrystal in a region isolated by using the sealing material.Alternatively, a sealing material or an ink applied to a backside of theCG cover glass may be used to shelter a cabling region.

In a possible embodiment, a length-width ratio of a display dimension ofa rectangular display region without a transparent region on the LCDdisplay is 16:9, 18:9, or another standard video format ratio.

In comparison with the prior art, according to the LCD display, theelectronic device, and the LCD display manufacturing method provided inthe embodiments, local transparency of the LCD display is implemented byusing several pin-through-holes at each of the several non-transparentmaterial layers on the LCD display, where the several pin-through-holesare oppositely disposed along the stacking direction, so that light canenter the optical components such as the camera, the ambient lightsensor, the optical sensor, and the optical fingerprint sensor that aredisposed under the LCD display, and full screen display is implementedin combination with layout optimization of the camera and the receiver.In this way, the screen-to-body ratio of the electronic device isincreased.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic structural diagram of a mobile phone according toan embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another mobile phoneaccording to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a mobile phone interface according toan embodiment of the present invention;

FIG. 4 to FIG. 17 are schematic structural diagrams of an LCD displayaccording to an embodiment of the present invention;

FIG. 18(a), FIG. 18(b), FIG. 18(c), FIG. 18(d), FIG. 18(e), FIG. 18(f)are a schematic diagram of a mobile phone interface according to anembodiment of the present invention;

FIG. 19 is a schematic structural diagram of metal cabling according toan embodiment of the present invention;

FIG. 20 is a schematic structural diagram of a local transparent regionon a display according to an embodiment of the present invention;

FIG. 21 is a schematic structural diagram of another LCD displayaccording to an embodiment of the present invention; and

FIG. 22 is a schematic diagram of an LCD display manufacturing methodaccording to an embodiment of the present invention.

DESCRIPTION OF EMBODIMENTS

An electronic device used in the embodiments of the present inventionmay be a mobile electronic device such as a mobile phone, a tabletcomputer, a personal digital assistant (Personal Digital Assistant,PDA), a point of sale (Point of Sales, POS), an in-vehicle computer, anotebook computer, or a smart wearable device (wearable device). Themobile phone is used as an example. FIG. 1 is a schematic structuraldiagram of a mobile phone related to an embodiment of the presentinvention. Referring to FIG. 1, a mobile phone 100 includes componentssuch as a radio frequency (Radio Frequency, RF for short) circuit 110, amemory 120, an input unit 130, a display unit 140, a sensor 150, anaudio circuit 160, a Wireless Fidelity (Wireless Fidelity, Wi-Fi)module, an I/O subsystem 170, a processor 180, and a power source 190.Persons skilled in the art may understand that the mobile phonestructure shown in FIG. 1 is merely an example of an implementation, anddoes not constitute a limitation on the mobile phone. The mobile phonemay include more or fewer components than those shown in the figure, orcombine some components, or have different component arrangements.

The following describes all constituent components of the mobile phone100 in detail with reference to FIG. 1.

The RF circuit 110 may be configured to: receive and send a signal in aninformation receiving or sending process or a call process, andparticularly, receive downlink information from a base station, and thensend the downlink information to the processor 180 for processing. Inaddition, the RF circuit 110 sends related uplink data to the basestation. Generally, the RF circuit includes but is not limited to anantenna, at least one amplifier, a transceiver, a coupler, a low noiseamplifier (low noise amplifier, LNA), a duplexer, and the like. Inaddition, the RF circuit 110 may also communicate with a network andanother device through wireless communication. The wirelesscommunication may use any communications standard or protocol, includingbut not limited to Global System for Mobile Communications (globalsystem for mobile communications, GSM), General Packet Radio Service(general packet radio service, GPRS), Code Division Multiple Access(code division multiple access, CDMA), Wideband Code Division MultipleAccess (wideband code division multiple access, WCDMA), Long TermEvolution (Long Term Evolution, LTE), an email, a short message service(short messaging service, SMS), and the like.

The memory 120 may be configured to store a software program and amodule. The processor 180 executes various function applications of themobile phone 100 and data processing by running the software program andthe module that are stored in the memory 120. The memory 120 may mainlyinclude a program storage area and a data storage area. The programstorage area may store an operating system, an application programrequired by at least one function (such as a voice playback function andan image playback function), and the like. The data storage area maystore data (such as audio data and a phonebook) that is created based onuse of the mobile phone 100 and the like. In addition, the memory 120may include a high-speed random access memory, or may further include anon-volatile memory such as at least one disk storage device, a flashmemory device, or another volatile solid-state storage device.

The another input device 130 may be configured to receive entereddigital or character information, and generate key signal input relatedto a user setting and function control of the mobile phone 100.Specifically, the another input device 130 may include a touch controlpanel 142 and other input devices 130. The touch control panel 131, alsoreferred to as a touchscreen, can collect a touch operation (forexample, an operation performed by a user on the touch control panel 131or near the touch control panel 131 by using a finger, a stylus, or anyother proper object or accessory) performed by the user on or near thetouch control panel 131, and drive a corresponding connection deviceaccording to a preset program. Optionally, the touch control panel 171may include two parts: a touch detection apparatus and a touchcontroller. The touch detection apparatus detects a touch position ofthe user, detects a signal brought by the touch operation, and transmitsthe signal to the touch controller. The touch controller receives touchinformation from the touch detection apparatus, converts the touchinformation into touch point coordinates, and then sends the touch pointcoordinates to the processor 180, and can receive a command sent by theprocessor 180 and execute the command. In addition, the touch controlpanel 131 may be implemented in a plurality of types, such as aresistive type, a capacitive type, an infrared type, and a surfaceacoustic wave type. The input unit 130 may further include the otherinput devices 132 in addition to the touch control panel 131.Specifically, the other input devices 132 may include but is not limitedto at least one of a physical keyboard, a functional button (such as avolume control button or a power button), a trackball, a mouse, ajoystick, and the like.

The display 140 may be configured to display information entered by theuser, information provided for the user, and various menus of the mobilephone 100. The display 140 may include a display panel 141. Optionally,the display panel 141 may be configured in a form of a liquid crystaldisplay (liquid crystal display, LCD), an organic light-emitting diode(organic light-emitting diode, OLED), or the like. Further, the touchcontrol panel 142 may cover the display panel 141. After detecting atouch operation on or near the touch control panel 131, the touchcontrol panel 142 transfers the touch operation to the processor 180 todetermine a type of a touch event. Then the processor 180 providescorresponding visual output on the display panel 141 based on the typeof the touch event. In FIG. 1, the touch control panel 142 and thedisplay panel 141 are used as two independent components to implementinput and output functions of the mobile phone 100. However, in someembodiments, the touch control panel 142 and the display panel 141 maybe integrated to implement the input and output functions of the mobilephone 100.

The mobile phone 100 may further include at least one sensor 150 such asan optical sensor, a motion sensor, and another sensor. Specifically,the optical sensor may include an ambient light sensor and an opticalproximity sensor. The ambient light sensor may adjust luminance of thedisplay panel 141 based on brightness of ambient light. The proximitysensor may turn off the display panel 141 and/or backlight when themobile phone 100 moves to an ear. As one type of a motion sensor, anaccelerometer sensor may detect a magnitude of an acceleration in eachdirection (generally, three axes), and may detect, a magnitude and adirection of gravity when the acceleration sensor is static. Theaccelerometer sensor may be applied to an application for recognizing aposture (for example, screen switching between a landscape mode and aportrait mode, a related game, or magnetometer posture calibration) ofthe mobile phone, a vibration recognition-related function (for example,a pedometer and tapping), and the like. For another sensor that may befurther configured in the mobile phone 100, such as a gyroscope, abarometer, a hygrometer, a thermometer, or an infrared sensor, detailsare not described herein.

The audio circuit 160, a loudspeaker 161, and a microphone 162 mayprovide an audio interface between the user and the mobile phone 100.The audio circuit 160 may transmit, to the speaker 161, an electricalsignal that is converted from received audio data, and the speaker 161converts the electrical signal into a sound signal for output. Inaddition, the microphone 162 converts a collected sound signal into anelectrical signal, and the audio circuit 160 receives the electricalsignal, converts the electrical signal into audio data, and outputs theaudio data to the processor 180 for processing, to send the audio datato, for example, another mobile phone by using the RF circuit 110, oroutput the audio data to the memory 120 for further processing.

Wi-Fi is a short-range wireless transmission technology. The mobilephone 100 may assist, by using the Wi-Fi module, the user inreceiving/sending e-mails, browsing web pages, accessing streamingmedia, and the like. The Wi-Fi module provides the user with wirelesswideband Internet access, or may be used for short-range communicationbetween two mobile phones. Although FIG. 1 shows the Wi-Fi module, itcan be understood that the Wi-Fi module is not a necessary part of themobile phone 100 and may certainly be omitted as required provided thatthe essence of the present invention is not changed.

The processor 180 is a control center of the mobile phone 100, connectsall parts of the mobile phone by using various interfaces and lines, andperforms various functions and data processing of the mobile phone 100by running or executing the software program and/or the module stored inthe memory 120 and invoking data stored in the memory 120, to performoverall monitoring on the mobile phone. Optionally, the processor 180may include one or more processing units. Preferably, the processor 180may integrate an application processor and a modem processor. Theapplication processor mainly processes an operating system, a userinterface, an application program, and the like. The modem processormainly processes wireless communication. It can be understood that themodem processor may not be integrated into the processor 180.

The mobile phone 100 further includes a power supply 190 (for example, abattery) supplying power to the components. Preferably, the power supplymay be logically connected to the processor 180 by using a powermanagement system, to implement functions such as charging anddischarging management and power consumption management by using thepower management system.

Although not shown, the mobile phone 100 may further include a camera, aBluetooth module, and the like. Details are not described herein.

In this embodiment of the present invention, the mobile phone 100includes at least one short-range wireless communications module such asa Wi-Fi module, a Bluetooth module, or an NFC module.

In this embodiment of the present invention, the processor included inthe system has the following functions: when it is detected that a filedisplayed on the touchscreen is touched, determining whether a touchingattribute meets a preset condition, where the touching attributeincludes at least one of a file touching time, a file dragging trace,and a final location to which the file is dragged; and when the touchingattribute meets the preset condition, transmitting the file to a targetelectronic device by using an established short-range wirelesscommunications data channel.

FIG. 2 shows an embodiment of another mobile phone according to anembodiment of the present invention. Referring to FIG. 2, the mobilephone 200 includes a body 201 and a display 140. The display 140 may beimplemented by integrating a touch control panel and a display panel toimplement input and output functions of the mobile phone 200. A user mayperform tap and slide operations on the display 140 by using a finger202 or a stylus 203, and the touch control panel may detect theoperations. The display 140 may also be referred to as a screen. Thebody 201 includes a photosensitive element 210, a receiver 220, a camera230, a physical button 240, a power button 250, a volume button 260, andthe like. The photosensitive element 210 may include an opticalproximity sensor and an ambient light sensor. The photosensitive element210 is mainly configured to detect a distance between a human body andthe mobile phone. For example, when a user is being on a call, and themobile phone is close to an ear, after the photosensitive element 210detects distance information, the touchscreen 140 of the mobile phone200 may disable an input function to prevent accidental touch.

It should be noted that the mobile phone 200 shown in FIG. 2 is merelyan example, and does not constitute a limitation. The mobile phone 200may include more or fewer components than those shown in the figure, orcombine some components, or have different component arrangements.

To increase a screen-to-body ratio, it is considered to move some or allof the camera, the optical proximity sensor, the ambient light sensor,the receiver, and a front-facing fingerprint sensor from a non-displayregion on the display panel 141 to a lower side of a display region, andchange cabling, a driving chip, and a cutting process of the display140, to effectively use the display panel 141 of the mobile phone,reduce the non-display region of the display panel 141, thereby increasethe screen-to-body ratio. In addition, a solution that the camera, theoptical proximity sensor, and/or the ambient light sensor are/isconfigured as a pop-up optical module increases complexity of astructural design of an electronic device. Consequently, productreliability is reduced, and even a thickness of the entire electronicdevice is increased. In addition, it is considered to use an LCD displayduring designing of the electronic device, to resolve problems of a costincrease and lack of waterproof and dustproof functions due to a hole ifan organic light-emitting diode (organic light-emitting diode, OLED)display is used.

In this embodiment of the present invention, all or some of the camera,the optical proximity sensor, the ambient light sensor, the receiver,and the front-facing fingerprint sensor are disposed in the displayregion on the display panel 141 of the LCD display. In FIG. 2, that thephotosensitive element 210 and the receiver 220 are disposed in thenon-display region of the display 140 and a part of the camera 230 isdisposed in the non-display region of the display 140 is used as anembodiment. The photosensitive element 210 includes the opticalproximity sensor, a photosensitive sensor, an infrared detector, a laserdetector, and the like. The camera 230 includes a front-facing cameraand a rear-facing camera. The physical button 240 is usually a homebutton, or a home button integrated with a fingerprint recognitionmodule. The physical button 240 may further include a back button, amenu button, and an exit button. Alternatively, the physical button 240may be a touch button in a specified position on the touchscreen. Forexample, the physical button 240 is a touch button in a center of thetouchscreen, and the touch button is integrated with a fingerprintrecognition module. For details of the receiver 220, refer todescriptions of the loudspeaker 161 in the embodiment shown in FIG. 1.For details of the physical button 240, the power button 250, and thevolume button 260, refer to descriptions of the another input device 130in the embodiment shown in FIG. 1. It should be noted that in thisembodiment of this application, the mobile phone may further include amicrophone, a data interface, a subscriber identity module (subscriberidentification module, SIM) card interface (not shown in the figure), aheadset jack, and the like.

It should be noted that in this embodiment of the present invention, forappearances of the photosensitive component 210, the receiver 220, thecamera 230, and the physical button 240 on the mobile phone 200, theappearances of the photosensitive component 210, the receiver 220, thecamera 230, and the physical button 240 on the mobile phone 200 may becollectively referred to as a transparent region. The transparent regionis used to transmit light to the photosensitive component 210 and thecamera 230, and transmit voice to the receiver 220.

According to the LCD display provided in this embodiment of the presentinvention, a structure of the LCD display is designed to implement alocal transparent region, so that outside light can enter componentssuch as the front-facing camera and the ambient light sensor that aredisposed under the display, and a full screen display effect is achievedin combination with layout optimization of components such as the cameraand the receiver. Therefore, the LCD display provided in this embodimentof the present invention can be applied to all scenarios in which localtransparency of the LCD display needs to be implemented. The LCD displayprovided in this embodiment of the present invention and a solution inwhich a pop-up structure and the OLED display are used can implementfull screen display of a mobile electronic device with low costs, andimprove user experience.

FIG. 3 is a schematic diagram of a mobile phone interface according toan embodiment of the present invention. As shown in FIG. 3, use sides (afront and/or a back) of the mobile phone may include a display region 32and a non-display region 33. The display region includes a localtransparent region 31.

The display region 32 may be the display 140 in FIG. 2. The non-displayregion 33 may be a non-display region of the display 140 of an interfaceappearance on an upper surface of the mobile phone 200 in FIG. 2. Thelocal transparent region 31 may be the photosensitive element 210 andthe camera 230 in FIG. 2. In FIG. 3, that the local transparent region31 is completely disposed at an upper left corner of the display region32, is completely disposed in a center of the display region 32, ispartially disposed in a center of a lower surface of the display region32, or partially disposed in a center of an upper surface of the displayregion 32 is used as an example. With reference to a design of a mobilephone user interface, all or some of a photosensitive component 11, areceiver 12, and a camera 13 may be disposed at the upper left corner ofthe display region 32 or disposed in any position in the display region32, and the position is not limited to the center of the upper surface.A physical button 14 may be completely disposed in the center of thedisplay region 32, or completely or partially disposed in any positionon the lower surface of the display region 32, and the position is notlimited to the center of the lower surface.

It should be noted that the photosensitive component 210, the receiver220, the camera 230, and the physical button 240 have differentstructures inside the mobile phone, and therefore shapes presented on asurface of the mobile phone are also different. In other words, shapesin the transparent region 31 may be different. For example, appearancesof the photosensitive component 210, the camera 230, and the physicalbutton 240 may be in circular shapes on the surface of the mobile phone,and the receiver 220 and the physical button 240 may be in curvedrectangular shapes.

FIG. 4 is a schematic structural diagram of an LCD display according toan embodiment of the present invention. As shown in FIG. 4, the LCDdisplay may be disposed in an electronic device, and the LCD display anda component body 409 of an optical component may be disposed together.

The LCD display includes several transparent material layers and severalnon-transparent material layers that are disposed in stack mode. Thereis a local transparent region on the LCD display. No non-transparentmaterial is applied to each non-transparent material layer in the localtransparent region, to form a transparent channel in the localtransparent region along a stacking direction. The component body 409 ofthe optical component may be completely or partially disposed in thetransparent channel of the LCD display.

That no non-transparent material is processed in the local transparentregion at each non-transparent material layer may be as follows: In amanufacturing process, for each non-transparent material, nonon-transparent material is processed in a position of a preset localtransparent region or a non-transparent material of the preset localtransparent region is removed from the entire transparent materiallayers, so that there is no non-transparent material in the localtransparent region at the non-transparent material layer.

It should be noted that both the local transparent region and atransparent region may be defined as a region, on the LCD display, thatis used to transmit light to the optical component. For brevity, thelocal transparent region and the transparent region have a same meaningand are interchangeably used.

In this embodiment of the present invention, the transparent region maybe presented as a pin-through-hole or a gap on the LCD display. Amaterial of the pin-through-hole or the gap on the LCD display may beimplemented by skipping processing or by using a cutting process, forexample, a pin-through-hole 410 in FIG. 4 to FIG. 16 and a gap 1310 inFIG. 13. Pin-through-holes or gaps are oppositely disposed along thestacking direction, to form the transparent channel on the LCD display.The component body 409 of the optical component may be completely orpartially disposed in the transparent channel of the LCD display. Thepin-through-hole and the gap are two different presentation manners ofthe transparent region. For brevity, the pin-through-hole is used fordescription.

In some embodiments, the LCD display may include several transparentmaterial layers and several non-transparent material layers that aredisposed in stack mode. Several pin-through-holes 410 may be disposed ineach non-transparent material, and the several pin-through-holes 410 areoppositely disposed along the stacking direction, to form a transparentchannel on the LCD display. Correspondingly, the component body 409 ofthe optical component is completely or partially disposed in thetransparent channel on the LCD display.

It should be noted that a quantity of pin-through-holes disposed on thenon-transparent material is related to a quantity of component bodies409 of optical components. A plurality of pin-through-holes need to bedisposed if there are component bodies 409 of a plurality of opticalcomponents. In other words, the quantity of component bodies 409 ofoptical components is corresponding to the quantity of componentchannels. For ease of description, the following performs description byusing an example in which one pin-through-hole is disposed at anon-transparent material layer and a component body 409 of one opticalcomponent is disposed in the pin-through-hole.

In a possible embodiment, the non-transparent material layer is amaterial layer whose transmittance is less than a transmittancethreshold. The transmittance threshold may be 40%, 50%, 60%, 80%, or thelike. The transmittance threshold may be set based on a specific opticalsensing requirement of an optical component. For example, a camera has arelatively high requirement for light transmission, and thetransmittance threshold may be set to 40% to 45%. Therefore, the localtransparent region or the transparent region described in thisspecification may be also a region whose transmittance meets a presettransmittance threshold.

In this embodiment of the present invention, the non-transparentmaterial layer includes a first polarizer 402 a, a color film (ColorFilter, CF) 404, a liquid crystal layer 405, a thin film transistor(Thin film transistor, TFT) 406, a second polarizer 402 b, and abacklight module 407. The transparent material layer includes a CG coverglass 400, a first LCD glass substrate 403 a, and a second LCD glasssubstrate 403 b. The first polarizer 402 a, the first LCD glasssubstrate 403 a, the CF 404, the liquid crystal layer 405, the TFT 406,the second LCD glass substrate 403 b, the second polarizer 402 b, andthe backlight module 407 are sequentially stacked on a lower surface ofthe CG cover glass 400. The lower surface of the CG cover glass 400 isdefined based on the stacking direction of the LCD display when the LCDdisplay of the mobile phone towards upward. Alternatively, the lowersurface of the CG cover glass 400 may be defined specific to a case inwhich the LCD display of the mobile phone towards downward. This is notlimited in this embodiment of the present invention. FIG. 4 is aschematic structural diagram of an example of an LCD display. A stackingorder of the LCD display may be adjusted based on an actual design, andthe LCD display may include more structures for implementing display.For brevity, details are not described herein.

A pin-through-hole 410 is disposed on the first polarizer 402 a, apin-through-hole 410 is disposed on the CF 404, the liquid crystal layer405, and the TFT 406, and a pin-through-hole 410 is disposed on thesecond polarizer 402 b and the backlight module 407. A position of thepin-through-hole 410 disposed at the first polarizer 402 a is separatelycorresponding to a position of the pin-through-hole 410 disposed at theCF 404, the liquid crystal layer 405, and the TFT 406 and a position ofthe pin-through-hole 410 disposed at the second polarizer 402 b and thebacklight module 407.

Specifically, the pin-through-hole 410 is disposed at the firstpolarizer 402 a, the pin-through-hole 410 is disposed at the CF 404, theliquid crystal layer 405, and the TFT 406, and the pin-through-hole 410is disposed at the second polarizer 402 b and the backlight module 407,to dispose the transparent region on a mobile phone interface. Duringactual manufacturing of the LCD display, a position of the transparentregion on the LCD display is first determined based on a designrequirement of the entire mobile phone. The transparent region is usedto transmit light to the photosensitive component 210 and the camera 230in FIG. 2, and transmit voice to the receiver 220.

Specifically, a local region that needs to be transparent on the LCDdisplay is determined based on the design requirement of the entiremachine. Regions corresponding to the first polarizer 402 a and thesecond polarizer 402 b on the LCD display are removed. The regions maybe removed before or after the first polarizer 402 a and the secondpolarizer 402 b are respectively formed on the first LCD glass substrate403 a and the second LCD glass substrate 403 b. According to thedesigned transparent region, during manufacturing of the LCD crystaldisplay, a non-transparent material layer such as the CF 404, the liquidcrystal layer 405, the TFT 406, and metal cabling corresponding to thetransparent region is not processed. A manufacturing method may be asfollows: During processing of these materials, the region is directlynot processed by designing a mask. Row-column cabling that could existand that is interrupted by the region may be arranged around the region,and therefore, a non-transparent region with a specific width is formed.Alternatively, the row-column cabling that is interrupted may beindependently arranged, and the cabling is separately led out from anearby left/right side or upper/lower side, to reduce an impact on anarea of the transparent region, as shown in FIG. 19. A sealing materialsuch as a sealing adhesive or another sealing material is processed on aperiphery of the transparent region between the first LCD glasssubstrate 403 a and the second LCD glass substrate 403 b, so that thereis no liquid crystal in the region isolated by using the sealingmaterial, and a large amount of light can pass through the LCD display.In addition, a sealing material or an ink applied to a backside of thecover glass may be used to shelter a cabling region. Because thebacklight module 407 is non-transparent, a part corresponding to thetransparent region needs to be hollowed out during designing of thebacklight module 407, and a component body of an optical component suchas a camera may be partially extended into a hollow-out part based on athickness of the hollow-out part, to reduce a thickness of the entiremachine. Because light is partially reflected on screens for which adifference between refractive indexes is relatively large, atransmittance is reduced. For example, air gaps generated after theforegoing materials on the LCD are removed cause a transmittancereduction. A material such as an OCA whose refractive index is close tothose of the first LCD glass substrate 403 a and the second LCD glasssubstrate 403 b may fill the air gaps. The OCA may be a solid adhesiveor a liquid adhesive. The solid OCA may be formed, in a bonding manner,on a lower surface of the first LCD glass substrate 403 a and on anupper surface of the second LCD glass substrate 403 b that arecorresponding to the transparent region, to increase an overall lighttransmittance. Alternatively, an inner side of the lower LCD glasssubstrate may be coated with an AR antireflective film 411, to furtherincrease the transmittance and provide a good optical basis for theoptical component such as the camera 230. An air gap between the CGcover glass 400 and the first LCD glass substrate 403 a may be filledwith an original OCA 402, and another layer of the OCA may be furtherused or a liquid OCA may be used to fill the gap.

In a possible embodiment, no non-transparent material is processed inthe transparent region at each non-transparent material layer, and thetransparent region at the non-transparent material layer is filled witha transparent filler or a liquid crystal material.

Specifically, the liquid crystal material or the transparent fillerfills a region corresponding to the transparent region between the firstLCD glass substrate 403 a and the second LCD glass substrate 403 b. Tobe specific, the pin-through-hole 410 disposed at the CF 404, the liquidcrystal layer 405, and the TFT 406 is filled with the liquid crystalmaterial or the transparent filler. In FIG. 6, that the pin-through-hole410 disposed at the CF 404, the liquid crystal layer 405, and the TFT406 is filled with the liquid crystal material is used as an example.Specifically, because light is partially reflected on screens for whicha difference between refractive indexes is relatively large, atransmittance is reduced. For example, an air gap generated after thepin-through-hole 410 is disposed at the CF 404, the liquid crystal layer405, and the TFT 406 causes a transmittance reduction. To resolve aproblem of the air gap, the pin-through-hole 410 disposed at the CF 404,the liquid crystal layer 405, and the TFT 406 may be filled with aliquid crystal without adding a device or a process of another fillingmaterial. If no liquid crystal material or transparent filler is drippedinto the region corresponding to the transparent region, no additionalproduction process is required, and light transmission is not affected.

The pin-through-hole 410 disposed at the CF 404, the liquid crystallayer 405, and the TFT 406 may be further filled with a transparentmaterial such as a transparent material 710 in FIG. 7. A refractiveindex of the transparent material 710 may be close to refractive indexesof the first LCD glass substrate 403 a and the second LCD glasssubstrate 403 b. For example, the pin-through-hole 410 disposed at thefirst polarizer 402 a and the pin-through-hole 410 disposed at the CF404, the liquid crystal layer 405, and the TFT 406 may be filled with anOCA, and an OCA is formed on a lower surface of the second LCD glasssubstrate. Different processes may be used based on different materialforms of the OCA. For example, a bonding manner may be used for a solidOCA, and the pin-through-hole 410 disposed at the CF 404, the liquidcrystal layer 405, and the TFT 406 is filled with the OCA, to increasean overall light transmittance. For example, in FIG. 10, the transparentmaterial 610 may fill the pin-through-hole 410 disposed at the firstpolarizer 402 a, and the liquid crystal material fills thepin-through-hole 410 disposed at the CF 404, the liquid crystal layer405, and the TFT 406, and the OCA is formed on the lower surface of thesecond LCD glass substrate.

It should be noted that the pin-through-hole 410 disposed at the CF 404,the liquid crystal layer 405, and the TFT 406 is filled with the liquidcrystal material. However, the filled liquid crystal material has a verylow transmittance. Therefore, in an actual manufacturing process, an ITOmaterial is processed on the lower surface of the first LCD glasssubstrate 403 a corresponding to the transparent region, and an ITOmaterial is retained on the upper surface of the second LCD glasssubstrate 403 b. As shown in FIG. 8, an ITO material 811 is formed onthe upper surface and the lower surface filled with the liquid crystalmaterial. After the ITO material is powered on, performance of thefilled liquid crystal material changes, so that light can be transmittedand light transmission is enhanced.

Specifically, in addition to the transparent material layer, there isfurther an ITO layer on the lower surface of the first LCD glasssubstrate 403 a and on the upper surface of the second LCD glasssubstrate 403 b. An electrical signal is applied to the ITO layer, toproduce an electric field for controlling liquid crystal deflection. AnITO layer is still retained in several pin-through-holes 410, and isconnected to a corresponding electrical signal. For example, an ITOlayer in a region corresponding to a pin-through-hole 410 on the firstLCD glass substrate 403 a is also connected to an ITO layer in anotherregion, and a same electrical signal is used; and an ITO layer in aregion corresponding to a pin-through-hole 410 on the second LCD glasssubstrate 403 b is connected to an independent control electricalsignal, for example, a control electrical signal of one or severalpixels in an original region corresponding to the transparent channelmay be used. Voltage is applied to the two ITO layers, to produce anelectric field for controlling deflection of a liquid crystal materialin the pin-through-holes 410, so that a large amount of light can passthrough the regions corresponding to the pin-through-holes, therebyachieving a local transparent effect.

In a possible embodiment, the transparent material further includes afirst alignment film and a second alignment film. The first alignmentfilm is manufactured on an upper surface of the liquid crystal layer405, and the second alignment film is manufactured on a lower surface ofthe liquid crystal layer 405. For example, in FIG. 9, that a firstalignment film 911 a is manufactured on the upper surface of the liquidcrystal layer 405 and a second alignment film 911 b is manufactured onthe lower surface of the liquid crystal layer 405 is used as an example.

Specifically, in FIG. 9, the liquid crystal layer 405 is formed betweena lower surface of the first alignment film 911 a and an upper surfaceof the second alignment film 911 b. No first alignment film or secondalignment film may be processed in a region of the pin-through-hole 410,and the pin-through-hole 410 corresponding to the CF 404, the liquidcrystal layer 405, and the TFT 406 is filled with the liquid crystalmaterial. For example, due to lack of the first alignment film 911 a andthe second alignment film 911 b in the region, alignments in the liquidcrystal layer 405 are disordered, and liquid crystal materials in theliquid crystal layer 405 are represented as isotropic materials, so thata large amount of light can normally pass through the region, therebyachieving a local transparent effect.

In a possible embodiment, the first alignment film and the secondalignment film may be processed in a region of the pin-through-hole 410.For example, in FIG. 10, when light needs to be transmitted, the firstalignment film 911 a and the second alignment film 911 b in thepin-through-hole 410 are powered on, so that the first alignment film911 a and the second alignment film 911 b in the pin-through-hole 410are invalid, alignments in the liquid crystal layer 405 are disordered,and liquid crystal materials in the liquid crystal layer 405 arerepresented as isotropic materials. In this way, a large amount of lightcan normally pass through the region, thereby achieving a localtransparent effect.

In a possible embodiment, the first alignment film and the secondalignment film may be processed only in a region of the pin-through-hole410. When light needs to be transmitted, the first alignment film andthe second alignment film that are processed in the region of thepin-through-hole 410 are powered on, so that the first alignment filmand the second alignment film in the pin-through-hole 410 are invalid,alignments in the liquid crystal layer 405 are disordered, and liquidcrystal materials in the liquid crystal layer 405 are represented asisotropic materials. In this way, a large amount of light can normallypass through the region, thereby achieving a local transparent effect.

In a possible embodiment, as shown in FIG. 15, an AR antireflective film411 may be further processed on the lower surface of the CG cover glass400 corresponding to the pin-through-hole 410. As shown in FIG. 4, thelower surface of the second LCD glass substrate 403 b corresponding tothe pin-through-hole 410 is coated with the AR antireflective film 411.A quantity of AR antireflective films 411 is related to a requirement ofthe LCD display for a transmittance. The quantity of AR antireflectivefilms 411 may be correspondingly increased according to a specific case,to improve a transmittance and provide a good optical basis for anoptical component such as a camera. No OCA is formed at the ARantireflective film 411, to prevent optical interference to the opticalcomponent.

In a possible embodiment, no transparent material is processed in thetransparent region on the first LCD glass substrate 403 a and the secondLCD glass substrate 403 b, to form a transparent channel in thetransparent region along the stacking direction.

Specifically, several pin-through-holes are separately disposed on thefirst LCD glass substrate 403 a and the second LCD glass substrate 403b. Regions of the pin-through-holes disposed on the first LCD glasssubstrate 403 a and the second LCD glass substrate 403 b arecorresponding to the pin-through-hole 410. For example, in FIG. 12, thattwo pin-through-holes 1210 are separately disposed on the first LCDglass substrate 403 a and the second LCD glass substrate 403 b is usedas an example. The two pin-through-holes 1210 are disposed on each ofthe first LCD glass substrate 403 a and the second LCD glass substrate403 b, so that a thickness of the display in the transparent region canbe further used by another component, and an overall thickness can bereduced.

In a possible embodiment, a transparent material is retained in thetransparent channel at the several transparent material layers.

Specifically, the transparent material is retained in the transparentchannel at the several transparent material layers, to form thetransparent channel in the transparent region in stack mode. Noadditional manufacture process is needed, manufacture costs are reduced,and a full screen display effect is not affected. In addition, thetransparent material is retained in the transparent region at theseveral transparent material layers, so that mechanical strength of theLCD display can be increased, and overall quality of the LCD display canbe improved.

It should be noted that the transparent channel is formed in stack modewhen no non-transparent material is processed in the transparent regionat the several non-transparent material layers.

In a possible embodiment, no transparent material is processed in thetransparent region on the CG cover glass, to form the transparentchannel in the transparent region along the stacking direction.

Specifically, several pin-through-holes may be further disposed on theCG cover glass 400. Regions of the pin-through-holes disposed on the CGcover glass 400 are corresponding to a position of the pin-through-hole410. For example, in FIG. 13, that two pin-through-holes 1210 aredisposed on the CG cover glass 400 is used as an example. Twopin-through-holes 1310 are disposed on the CG cover glass 400, toprovide a good acoustic basis for an acoustic component such as areceiver.

It should be noted that in FIG. 13, to provide a good acoustic basis forthe acoustic component such as the receiver, the two pin-through-holes1210 disposed on each of the first LCD glass substrate 403 a and thesecond LCD glass substrate 403 b are corresponding to the twopin-through-holes 1310 disposed on the CG cover glass 400. A goodacoustic basis is provided for the acoustic component such as thereceiver 220 by using the disposed pin-through-hole 410, thepin-through-holes 1210, and the pin-through-holes 1310.

In a possible embodiment, a sealing material is applied to a peripheryof the pin-through-hole 410.

Specifically, the sealing material such as a silicone sealant is appliedto the periphery of the pin-through-hole 410, so that there is no liquidcrystal in a region isolated by using the sealing material. For example,in FIG. 4, that a sealing material is applied to a periphery of thepin-through-hole 410 disposed at the CF 404, the liquid crystal layer405, and the TFT 406 is used as an example.

It should be noted that no sealing material may be applied to aperiphery of the pin-through-hole 410 disposed at the CF 404 and aperiphery of the pin-through-hole 410 disposed at the TFT 406, providedthat a liquid crystal is used for isolation.

In a possible embodiment, a length-width ratio of a display dimension ofa rectangular display region without a transparent channel in a displayregion is 16:9 or 18:9.

Specifically, in FIG. 18 (d), for a screen under the transparent region,namely, a screen excluding the transparent region, a length of thescreen is H, and a width of the screen is W. The H/W ratio of the screenmay be 18:9, 16:9, or 4:3, or another movie/video-supportedstandard-format ratio, so that experience in watching a film or a video,viewing an image, or the like is not affected by the transparent region.

In a possible embodiment, the transparent region may be completely orpartially disposed in the display region on the CG cover glass 400.

Specifically, the camera 20 may be completely or partially disposed inthe display region on the CG cover glass 400. For example, the camera 20is completely disposed in the display region in FIG. 18 (a), (b), (d),(e), and (f), and the camera 20 is partially disposed in the displayregion in FIG. 18 (c). The transparent region may be disposed indifferent positions in the display region. For example, in FIG. 18 (b)and FIG. 18 (d), the cameras 20 are disposed in different positions ofthe display region. The transparent region may be set to differentshapes. For example, in FIG. 18 (f), the camera 20 and thephotosensitive component 21 may be disposed in a same transparent region27. In FIG. 18 (e), there are two cameras 20. Same as the camera 20, thephotosensitive component 21 may be partially or completely disposed inthe display region, and a size and a position of a transparent regioncorresponding to the photosensitive component 21 may vary with thephotosensitive component. The receiver may be partially or completelydisposed in the display region. The physical button 24 may also bepartially or completely disposed in the display region. The physicalbutton 24 may alternatively be a touch button at a specified position inthe display region. For example, the physical button 24 is a touchbutton in a central position in the display region, and the touch buttonis integrated with a fingerprint recognition module, for example, aphysical button 25 shown in FIG. 18 (b), FIG. 18 (c), FIG. 18 (d), andFIG. 18 (e).

The following describes a position, a size, and a shape of thetransparent region disposed in the display region with reference to FIG.4 to FIG. 17.

A position of a gap 1410 in FIG. 14 is different from those in FIG. 4 toFIG. 13 and FIG. 15 to FIG. 17. The transparent channel in FIG. 15 has alargest depth, and the component body 409 of the optical component maybe partially disposed in the transparent channel. The component body 409of the optical component may be completely or partially disposed underthe transparent channel in other accompanying drawings. In FIG. 16, tobetter prevent the component body 409 of the optical component from dustinterference, a sealing material 1611 may be applied to the componentbody 409 of the optical component, but the middle transparent channelneeds to be retained. An OCA is removed from the pin-through-hole towhich the sealing material 1611 is applied. When the OCA 401 is exposedto the air, the OCA is easy to be covered with dust, and a surfacebecomes uneven. Consequently, photographing is affected. Some of thevarious layers of materials in the LCD display may be synthesized. Forexample, in FIG. 17, the first LCD glass substrate and the CF aresynthesized as a CF glass 1711, and the second LCD glass substrate andthe TFT are synthesized as a TFT glass 1712.

In this embodiment of the present invention, a cutting manner such ascomputerized numerical control (computerized numerical control, CNC) orlaser processing cutting may be used for the first polarizer, the firstLCD glass substrate, the second LCD glass substrate, the secondpolarizer, and the backlight module. At least one pin-through-hole isdisposed at the first polarizer, the second polarizer, and the backlightmodule. The at least one pin-through-hole may be obtained throughcutting before or after the first polarizer and the second polarizer areformed on the CG cover glass. During designing of the transparentregion, no non-transparent material corresponding to the transparentregion may be processed, for example, the CF, the TFT, and metalcabling. For the CF, the TFT, and the metal cabling, no non-transparentmaterial corresponding to the transparent region may be processed bydesigning a mask. Row-column cabling that could exist and that isinterrupted by the not-processed region may be arranged around thenot-processed region, and therefore, a non-transparent region with aspecific width is formed. Alternatively, the row-column cabling that isinterrupted may be independently arranged, row cabling is led out from aleft/right side, and column cabling is led out from an upper/down side,to reduce an impact on an area of the transparent region. As shown inFIG. 19, Row-column cabling that could exist and that is interrupted bythe not-processed region may be arranged around the not-processedregion, and therefore, a non-transparent region with a specific width isformed. The non-transparent region may be formed through sealing byusing a sealing material m. Alternatively, row-column cabling that isinterrupted may be independently arranged, row cabling h is led out froma left/right side, and column cabling 1 is led out from an upper/downside, to reduce an impact on an area of the transparent region. Toprevent cabling leakage, a sealing material or an ink applied to abackside of the cover glass may be used to shelter a cabling region. Forexample, in FIG. 20, a sealing material 2004 is used to isolate atransparent region 2001 and a liquid crystal 2003, and a siliconesealant 2002 is used to prevent the liquid crystal 2003 from leakage.

It should be noted that a production process of the LCD display is aproduction process related to evaporation, sputtering, and the like, andan OCA or an adhesive tape is used for bonding only between modules.

In some embodiments, the LCD display includes several transparentmaterial layers and several non-transparent material layers that aredisposed in stack mode. There is a transparent region on the LCDdisplay. No non-transparent material is processed in the transparentregion at the several non-transparent material layers, to form acomponent channel in the transparent region along a stacking direction.A fingerprint sensor is completely or partially disposed in thecomponent channel of the LCD display.

In this embodiment of the present invention, the transparent region maybe presented as a pin-through-hole or a gap on the LCD display. Amaterial of the pin-through-hole or the gap on the LCD display may beimplemented by skipping processing or by using a cutting process, forexample, a pin-through-hole 410 in FIG. 21. Pin-through-holes or gapsare oppositely disposed along the stacking direction, to form atransparent channel on the LCD display. The component body 409 of theoptical component may be completely or partially disposed under thetransparent channel of the LCD display or partially disposed in thetransparent channel. The pin-through-hole and the gap are two differentpresentation manners of the transparent region. For brevity, thepin-through-hole is used for description.

In some embodiments, the LCD display includes several transparentmaterial layers and several non-transparent material layers that aredisposed in stack mode. There are several pin-through-holes on the LCDdisplay that are formed at at least one layer of the severalnon-transparent material layers and the several transparent materiallayers, and the several pin-through-holes are oppositely disposed alonga stacking direction, to form a component channel in the LCD display. Afingerprint sensor is partially or completely disposed in the componentchannel. In FIG. 21, the fingerprint sensor is completely disposed inthe component channel. In this case, the mobile phone has a smallestthickness.

The non-transparent material layer is a material layer whosetransmittance is less than a transmittance threshold. The transmittancethreshold may be 40%, 50%, 60%, 80%, or the like. The transmittancethreshold may be set based on a specific optical sensing requirement ofan optical component. For example, a camera has a relatively highrequirement for light transmission, and the transmittance threshold maybe set to 40% to 45%.

Several pin-through-holes are disposed at at least one of the severaltransparent material layers, so that several transparent materials maybe used to transmit light, and the pin-through-holes may becorrespondingly adjusted based on a quantity of fingerprint sensors anda size of the fingerprint sensor.

In this embodiment of the present invention, the non-transparentmaterial layer includes a first polarizer 402 a, a CF 404, a liquidcrystal layer 405, a TFT 406, a second polarizer 402 b, and a backlightmodule 407. The transparent material layer includes a CG cover glass400, a first LCD glass substrate 403 a, and a second LCD glass substrate403 b. The first polarizer 402 a, the first LCD glass substrate 403 a,the CF 404, the liquid crystal layer 405, the TFT 406, the second LCDglass substrate 403 b, the second polarizer 402 b, and the backlightmodule 407 are sequentially stacked on a lower surface of the CG coverglass 400. In addition, the pin-through-hole 410 is disposed on all ofthe first polarizer 402 a, the first LCD glass substrate 403 a, the CF404, the liquid crystal layer 405, the TFT 406, the second LCD glasssubstrate 403 b, the second polarizer 402 b, and the backlight module407. The fingerprint sensor 2011 is completely disposed in the componentchannel. The lower surface of the CG cover glass 400 is defined based onthe stacking direction of the LCD display when the LCD display of themobile phone towards upward. Alternatively, the lower surface of the CGcover glass 400 may be defined specific to a case in which the LCDdisplay of the mobile phone towards downward. This is not limited inthis embodiment of the present invention. FIG. 21 is a schematicstructural diagram of an example of an LCD display. A stacking order ofthe LCD display may be adjusted based on an actual design, and the LCDdisplay may include more structures for implementing display. Forbrevity, details are not described herein.

In a possible embodiment, the fingerprint sensor may be an opticalfingerprint sensor, a capacitive fingerprint sensor, or a digitaloptical recognition sensor. A display may be disposed on two sides ofthe sensor, to increase a screen-to-body ratio.

In this embodiment of the present invention, the severalpin-through-holes are disposed on the LCD display, to form the componentchannel on the LCD display, so that the fingerprint sensor is partiallyor completely disposed in the component channel.

It should be noted that FIG. 5 is a cross-sectional schematic diagramalong directions of AA′ and BB′ of a right side of FIG. 4, and FIG. 6 toFIG. 17.

In an LCD display manufacturing process, to fasten the CG cover glass400 and a case of the mobile phone, an adhesive 413 in FIG. 4 may beused to bond the CG cover glass 400 and a structure 412, to fasten theCG cover glass 400 and the case of the mobile phone. The structure 412may be a support structure or a cabling region. For brevity, details arenot described herein.

In the foregoing embodiments of the present invention, the opticalcomponent may be any component that is configured to form an opticalcircuit or constitute an optical component, or an optical-relatedcomponent. For example, the optical component may be a component such asan optical fingerprint sensor, a camera, an optical proximity sensor, astructured light sensor, an infrared laser transmitter, and an ambientlight sensor. For example, when light passes through the camera, animage can be formed.

Certainly, the foregoing embodiments may be combined in various mannerswithin the protection scope requested by this application.

According to the embodiments of the present invention, opticalcomponents such as a camera and an ambient light sensor, and an opticalfingerprint sensor and another component may be disposed under the LCDdisplay by using the transparent region on the LCD display, therebygreatly increasing a screen-to-body ratio and achieving a full screeneffect.

FIG. 22 is a flowchart of an LCD display manufacturing method accordingto an embodiment of the present invention. As shown in FIG. 22, the LCDdisplay manufacturing method may include the following steps.

Step 2201: Determine a transparent region disposed on an LCD display.

Step 2202: Skip processing a non-transparent material in the transparentregion, where the LCD display includes several transparent materiallayers and several non-transparent material layers, to form atransparent channel in the transparent region along a stackingdirection.

Step 2203: Combine the several transparent material layers and theseveral non-transparent material layers.

That no non-transparent material is processed in a local transparentregion at each non-transparent material layer may be as follows: In amanufacturing process, for each non-transparent material, nonon-transparent material is processed in a position of a preset localtransparent region or a non-transparent material of the preset localtransparent region is removed from the entire transparent materiallayers, so that there is no non-transparent material in the localtransparent region at the non-transparent material layer.

It should be noted that both the local transparent region and thetransparent region may be defined as a region, on the LCD display, thatis used to transmit light to an optical component. For brevity, thelocal transparent region and the transparent region have a same meaningand are interchangeably used.

In this embodiment of the present invention, the transparent region maybe presented as a pin-through-hole or a gap on the LCD display. Amaterial of the pin-through-hole or the gap on the LCD display may beimplemented by skipping processing or by using a cutting process, forexample, a pin-through-hole in FIG. 4 to FIG. 16 and a gap in FIG. 13.Pin-through-holes or gaps are oppositely disposed along the stackingdirection, to form the transparent channel on the LCD display. Acomponent body of an optical component may be completely or partiallydisposed in the transparent channel of the LCD display. Thepin-through-hole and the gap are two different presentation manners ofthe transparent region. For brevity, the pin-through-hole is used fordescription.

It should be noted that a quantity of pin-through-holes disposed on thenon-transparent material is related to a quantity of optical components.A plurality of pin-through-holes need to be disposed if there are aplurality of optical components. In other words, the quantity of opticalcomponents may be in a one-to-one correspondence with the quantity ofcomponent channels, or a plurality of optical components are disposed inone pin-through-hole. This is specifically determined based on a processdesign. For ease of description, the following performs description byusing an example in which one pin-through-hole is disposed at thenon-transparent material layer.

In a possible embodiment, the non-transparent material layer is amaterial layer whose transmittance is less than a transmittancethreshold. The transmittance threshold may be 40%, 50%, 60%, 80%, or thelike. The transmittance threshold may be set based on a specific opticalsensing requirement of an optical component. For example, a camera has arelatively high requirement for light transmission, and thetransmittance threshold may be set to 40% to 45%. Therefore, the localtransparent region or the transparent region described in thisspecification may be also a region whose transmittance meets a presettransmittance threshold.

In this embodiment of the present invention, the non-transparentmaterial layer includes a first polarizer, a CF, a liquid crystal layer,a TFT, a second polarizer, and a backlight module. The transparentmaterial layer includes a CG cover glass, a first LCD glass substrate,and a second glass substrate. The first polarizer, the first LCD glasssubstrate, the CF, the liquid crystal layer, the TFT, the second LCDglass substrate, the second polarizer, and the backlight module aresequentially stacked on a lower surface of the CG cover glass. The lowersurface of the CG cover glass 400 is defined based on the stackingdirection of the LCD display when the LCD display of a mobile phonetowards upward. Alternatively, the lower surface of the CG cover glass400 may be defined specific to a case in which the LCD display of themobile phone towards downward. This is not limited in this embodiment ofthe present invention. FIG. 4 is a schematic structural diagram of anexample of an LCD display. A stacking order of the LCD display may beadjusted based on an actual design, and the LCD display may include morestructures for implementing display. For brevity, details are notdescribed herein.

Specifically, a position for disposing the transparent region isdetermined. The transparent region is disposed on the LCD display. TheLCD display includes the CG cover glass, the first polarizer, the firstLCD glass substrate, the CF, the liquid crystal layer, the TFT, thesecond LCD glass substrate, the second polarizer, and the backlightmodule. No non-transparent material is processed in the transparentregion at the first polarizer, the CF, the liquid crystal, the TFT, thesecond polarizer, and the backlight module, to form the transparentchannel in the transparent region along the stacking direction. The CGcover glass, the first polarizer, the first LCD glass substrate, the CF,the liquid crystal, the TFT, the second LCD glass substrate, the secondpolarizer, and the backlight module are sequentially formed.

In this embodiment of the present invention, a cutting manner such asCNC or laser processing cutting may be used for the first polarizer, thefirst LCD glass substrate, the second LCD glass substrate, the secondpolarizer, and the backlight module. A first pin-through-hole isdisposed at the first polarizer, the second polarizer, and the backlightmodule. The first pin-through-hole may be obtained through cuttingbefore or after the first polarizer and the second polarizer are formedon the CG cover glass. During designing of the transparent region, nonon-transparent material corresponding to the transparent region may beprocessed, for example, the CF, the TFT, and metal cabling. For the CF,the TFT, and the metal cabling, no non-transparent materialcorresponding to the transparent region may be processed by designing amask.

According to this embodiment of the present invention, opticalcomponents such as a camera, an ambient light sensor, and an opticalfingerprint sensor and another component may be disposed under the LCDdisplay by using the transparent region on the LCD display, therebygreatly increasing a screen-to-body ratio and achieving a full screeneffect.

In a possible embodiment, before the step of combining the severaltransparent material layers and the several non-transparent materiallayers, the LCD display manufacturing method further includes: skippingprocessing a non-transparent material in the transparent region at theseveral non-transparent material layers, and filling a transparentfiller or a liquid crystal material.

Specifically, the liquid crystal material or the transparent fillerfills a region corresponding to the transparent region between the firstLCD glass substrate and the second LCD glass substrate. To be specific,the first pin-through-hole is filled with the liquid crystal material orthe transparent filler, as shown in FIG. 6. Filling the regioncorresponding to the transparent region with the liquid crystal materialdoes not increase implementation difficulty. In addition, if no liquidcrystal material or transparent filler is dripped into the regioncorresponding to the transparent region, no additional productionprocess is required, and light transmission is not affected.

Because light is partially reflected on screens for which a differencebetween refractive indexes is relatively large, a transmittance isreduced. For example, an air gap generated after a firstpin-through-hole is disposed at the CF, the liquid crystal layer, andthe TFT causes a transmittance reduction. To resolve a problem of theair gap, the first pin-through-hole disposed at the CF, the liquidcrystal layer, and the TFT may be filled with a liquid crystal withoutadding a device or a process of another filling material.

The first pin-through-hole disposed at the CF, the liquid crystal layer,and the TFT may be further filled with a transparent material. Arefractive index of the transparent material may be close to refractiveindexes of the first LCD glass substrate and the second LCD glasssubstrate. For example, the first pin-through-hole disposed at the firstpolarizer, the CF, the liquid crystal layer, and the TFT may be filledwith an OCA, and an OCA is formed on a lower surface of the second LCDglass substrate. Different processes may be used based on differentmaterial forms of the OCA. For example, a bonding manner may be used fora solid OCA, and the first pin-through-hole disposed at the CF, theliquid crystal layer, and the TFT may be filled with the OCA, to improvean overall light transmittance. Alternatively, the transparent materialmay fill a first pin-through-hole disposed at the first polarizer, andthe liquid crystal material fills the first pin-through-hole disposed atthe CF, the liquid crystal layer, and the TFT, and the OCA is formed onthe lower surface of the second LCD glass substrate, as shown in FIG.11.

It should be noted that the first pin-through-hole disposed at the CF,the crystal layer, and the TFT is filled with the liquid crystalmaterial. However, the filled liquid crystal material has a very lowtransmittance. Therefore, in an actual manufacturing process, an ITOmaterial is retained on a lower surface of the first LCD glass substratecorresponding to the transparent region, and an ITO material is retainedon an upper surface of the second LCD glass substrate. An electricalsignal is applied to the ITO material, to produce an electric field forcontrolling liquid crystal deflection. An ITO layer is still retained inseveral transparent channels, and is connected to a correspondingelectrical signal. For example, an ITO layer in a region correspondingto a second pin-through-hole on the first LCD glass substrate is alsoconnected to an ITO layer in another region, and a same electricalsignal is used; and an ITO layer in a region corresponding to a secondpin-through-hole on the second LCD glass substrate is connected to anindependent control electrical signal, for example, a control electricalsignal of one or several pixels in an original region corresponding tothe transparent channel may be used. Voltage is applied to the two ITOlayers, to produce an electric field for controlling deflection of aliquid crystal material in transparent channels, so that a large amountof light can pass through the regions corresponding to thepin-through-holes, thereby achieving a local transparent effect, asshown in FIG. 8.

Specifically, there is still an ITO layer on the lower surface of thefirst LCD glass substrate and an ITO layer on the upper surface of thesecond LCD glass substrate.

In a possible embodiment, the transparent material further includes afirst alignment film and a second alignment film. A liquid crystalmaterial is dripped between a lower surface of the first alignment filmand an upper surface of the second alignment film, as shown in FIG. 4.

In a possible embodiment, the liquid crystal material is dripped betweenthe lower surface of the first alignment film and the upper surface ofthe second alignment film, to form the liquid crystal layer. No firstalignment film or second alignment film is processed in a region of thefirst pin-through-hole, and the first pin-through-hole is filled withthe liquid crystal material. Due to lack of the first alignment film andthe second alignment film in the region, alignments in the liquidcrystal layer are disordered, and liquid crystal materials in the liquidcrystal layer are represented as isotropic materials, so that a largeamount of light can normally pass through the region, thereby achievinga local transparent effect, as shown in FIG. 9.

In a possible embodiment, the liquid crystal material is dripped betweenthe lower surface of the first alignment film and the upper surface ofthe second alignment film, to form the liquid crystal layer. The firstalignment film and the second alignment film are processed in the firstpin-through-hole, and the first pin-through-hole is filled with theliquid crystal material. When light needs to be transmitted, the firstalignment film and the second alignment film in the firstpin-through-hole are powered on, so that the first alignment film andthe second alignment film in the first pin-through-hole are invalid,alignments in the liquid crystal layer are disordered, and liquidcrystal materials in the liquid crystal layer are represented asisotropic materials. In this way, a large amount of light can normallypass through the region, thereby achieving a local transparent effect,as shown in FIG. 10.

In a possible embodiment, the first alignment film and the secondalignment film may be processed only in a region of the firstpin-through-hole. When light needs to be transmitted, the firstalignment film and the second alignment film that are processed in theregion of the first pin-through-hole are powered on, so that the firstalignment film and the second alignment film in the firstpin-through-hole are invalid, alignments in the liquid crystal layer aredisordered, and liquid crystal materials in the liquid crystal layer arerepresented as isotropic materials. In this way, a large amount of lightcan normally pass through the region, thereby achieving a localtransparent effect.

In a possible embodiment, before the step of combining the severaltransparent material layers and the several non-transparent materiallayers, the method further includes: cutting off a transparent materialfrom the first LCD glass substrate and the second LCD glass substrate inthe transparent region, to form the transparent channel in thetransparent region along the stacking direction.

Specifically, the transparent material of the first LCD glass substrateand the second LCD glass substrate in the transparent region is removed.In other words, a second pin-through-hole corresponding to the firstpin-through-hole is disposed on the first LCD glass substrate and thesecond LCD glass substrate. A quantity of second pin-through-holes isrelated to a quantity of cameras, receivers, photosensitive components,or physical buttons. For example, when there are two cameras, two secondpin-through-holes are disposed on each of the first LCD glass substrateand the second LCD glass substrate, as shown in FIG. 12.

In a possible embodiment, before the step of combining the severaltransparent material layers and the several non-transparent materiallayers, the method further includes: processing a transparent materialin the transparent channel at the several transparent material layers.

Specifically, the transparent material is processed in the transparentchannel at the several transparent material layers, to form thetransparent channel in the transparent region in stack mode. Noadditional manufacture process is needed, manufacture costs are reduced,and a full screen display effect is not affected. In addition, thetransparent material is retained in the transparent region at theseveral transparent material layers, so that mechanical strength of theLCD display can be increased, and overall quality of the LCD display canbe improved.

It should be noted that the transparent channel is formed in stack modewhen no non-transparent material is processed in the transparent regionat the several non-transparent material layers.

In a possible embodiment, before the step of combining the severaltransparent material layers and the several non-transparent materiallayers, the method further includes: cutting off a transparent materialfrom the CG cover in the transparent region, to form the transparentchannel in the transparent region along the stacking direction.

Specifically, the transparent material of the CG cover in thetransparent region is removed, so that a third pin-through-holecorresponding to the first pin-through-hole is disposed on the CG coverglass. A region that is of the CG cover glass and that is correspondingto the third pin-through-hole is removed, so that the thirdpin-through-hole is corresponding to the first pin-through-hole. Thethird pin-through-hole is disposed to transmit voice for an acousticcomponent disposed under the LCD display. A quantity of thirdpin-through-holes is related to a quantity of acoustic components, asshown in FIG. 13.

In a possible embodiment, a sealing material is applied to a peripheryof the transparent channel of the several non-transparent layers.

Specifically, the sealing material is applied to a periphery of thefirst pin-through-hole disposed at the liquid crystal layer.

In a possible embodiment, a length-width ratio of a display dimension ofa rectangular display region without a transparent channel in a displayregion is 16:9 or 18:9.

Specifically, in FIG. 18 (d), for a screen under the transparent region,namely, a screen excluding the transparent region, a length of thescreen is H, and a width of the screen is W. The H/W ratio of the screenmay be 18:9, 16:9, or 4:3, so that experience in watching a film or avideo, viewing an image, or the like is not affected by the transparentregion.

It should be noted that, the transparent region is disposed on the LCDdisplay, and regions, corresponding to the transparent region, of thefirst polarizer, the first LCD glass substrate, the CF, the liquidcrystal layer, the TFT, the second LCD glass substrate, the secondpolarizer, and the backlight module on the LCD display are separatelyremoved. The regions may be removed after or before the first polarizer,the first LCD glass substrate, the CF, the liquid crystal layer, theTFT, the second LCD glass substrate, the second polarizer, and thebacklight module are formed.

According to this embodiment of the present invention, opticalcomponents such as the camera and the ambient light sensor and anothercomponent may be disposed under the display by using the transparentregion on the LCD display, thereby greatly increasing a screen-to-bodyratio and achieving a full screen effect.

The following describes the LCD display manufacturing method provided inthe embodiments of the present invention with reference to Embodiment 1,Embodiment 2, and Embodiment 3.

Embodiment 1

In a possible embodiment, the first polarizer and the second polarizerare used, and the first polarizer and the second polarizer are partiallyremoved from a specific region. Light penetrated into a specific regionon the first LCD glass substrate may be considered as natural light. Nonon-high-transmittance material such as the CF, a metal line, and theTFT component is processed in the specific region, and a siliconesealant is applied, so that there is no liquid crystal in the specificregion. In this way, a large amount of light can pass through theregion, thereby achieving a local transparent effect, as shown in FIG.4.

Specifically, the LCD display manufacturing method may include thefollowing steps.

Step 1: Determine, based on a design requirement of the entire machine,a region that needs to be transparent on the LCD display, and removeregions corresponding to the first polarizer and the second polarizer onthe LCD display, where the regions may be removed before the polarizersare formed on the glasses or after the polarizers are laminated on theglasses. The transparent region may be completely inside the displayregion or on an edge of the display region.

Step 2: Skip, based on the designed transparent region, processing anon-transparent material layer such as the CF, the TFT, and metalcabling corresponding to the transparent region during manufacturing ofthe LCD display, and during processing the CF and the TFT correspondingto the transparent region, directly skip processing the CF and the TFTcorresponding to the transparent region by designing a mask. Row-columncabling that could exist and that is interrupted by the region may bearranged around the region, and therefore, a non-transparent region witha specific width is formed. Alternatively, the row-column cabling thatis interrupted may be independently arranged, and the cabling isseparately led out from a nearby left/right side or upper/lower side, toreduce an impact on an area of the transparent region, as shown in FIG.19.

Step 3: Process a sealing adhesive or another sealing material on aperiphery of the transparent region on the first LCD glass substrate andthe second LCD glass substrate that are corresponding to the transparentregion, so that there is no liquid crystal in a region isolated by usingthe sealing material, and a large amount of light can pass through theLCD display. In addition, a sealing material or an ink applied to abackside of the cover glass may be used to shelter a cabling region.

Step 4: Because the backlight module of the LCD display isnon-transparent, hollow out a part corresponding to the transparentregion during designing of the backlight module, and partially extend acomponent body of a component such as a camera into a hollow-out partbased on a thickness of the hollow-out part, to reduce a thickness ofthe entire machine.

Step 5: Because light is partially reflected on screens for which adifference between refractive indexes is relatively large, and atransmittance is reduced, for example, air gaps generated after theforegoing materials on the LCD display are removed cause a transmittancereduction, fill the air gaps with a material such as an OCA whoserefractive index is close to those of the first LCD glass substrate andthe second LCD glass substrate, to increase an overall lighttransmittance, or coat a lower surface of the second LCD glass substratewith an AR antireflective film, to further increase the transmittanceand provide a good optical basis for an optical component such as thecamera.

Specifically, an air gap between the CG cover glass and the LCD glasssubstrate may be filled with an original OCA, and another layer of theOCA may be further used or a liquid OCA may be used to fill the gap.

Step 7: Combine and lay out the LCD display and the camera, an ambientlight sensor, an optical proximity sensor, or another component, toachieve a full screen effect.

It should be noted that step 1, step 2, and step 4 may be performedsimultaneously or separately, and an execution order is not limited.

According to an improved LCD display structure and an implementationmethod of the improved LCD display structure provided in the presentinvention, a hole is disposed in a structure material other than aglass, to achieve local transparency. In comparison with the prior art,there is no need to use an OLED display, and there is no need to removea glass to achieve a transparent effect. Therefore, there are moreadvantages in good productivity, reliability, and costs.

Embodiment 2

In Embodiment 2 of the present invention, the first polarizer and thesecond polarizer on which different shapes of holes are formed are used.In other words, the polarizers are partially removed from a specificregion, so that light penetrated into the specific region on an LCDglass is still natural light. In addition, no non-high-transmittancematerial such as the CF, a metal line, and the TFT component ismanufactured in the specific region. Further, an alignment film in theregion is made to become invalid, alignments of liquid crystals aredisordered, and the liquid crystals are represented as isotropicmaterials, so that a large amount of light can normally pass through theregion, to achieve a local transparent effect. No other transparentmaterials such as an alignment film and ITO cabling may be processed, tofurther increase a transmittance, as shown in FIG. 9.

Step 1: Determine, based on a design requirement of the entire machine,a region that needs to be transparent on the LCD display, and removeregions corresponding to the first polarizer and the second polarizer onthe LCD display, where the regions may be removed before or after thepolarizers are laminated on the glasses. The transparent region may becompletely inside the display region or on an edge of the displayregion.

Step 2: Skip, based on the designed transparent region, processing anon-transparent material layer such as the CF, the TFT, and metalcabling corresponding to the transparent region during manufacturing ofthe LCD display, and during processing of the CF 404 and the TFT 406corresponding to the transparent region, directly skip processing the CFand the TFT corresponding to the transparent region by designing a mask.Row-column cabling that could exist and that is interrupted by theregion may be arranged around the region, and therefore, anon-transparent region with a specific width is formed. Alternatively,the row-column cabling that is interrupted may be independentlyarranged, and the cabling is separately led out from a nearby left/rightside or upper/lower side, to reduce an impact on an area of thetransparent region, as shown in FIG. 19.

Step 3: Process a sealing adhesive or another isolation material on aperiphery of the transparent region on the first LCD glass substrate andthe second LCD glass substrate, and make an alignment film in the regioninvalid, so that liquid crystals in the transparent region are in randomdirections, and the liquid crystals present an isotropic feature, and alarge amount of light can normally pass through the LCD display.

Step 4: Because the backlight module of the LCD display isnon-transparent, hollow out a part corresponding to the transparentregion during designing of the backlight module, and partially extend acomponent body of a component such as a camera into a hollow-out partbased on a thickness of the hollow-out part, to reduce a thickness ofthe entire machine.

Step 5: Because light is partially reflected on screens for which adifference between refractive indexes is relatively large, and atransmittance is reduced, for example, air gaps generated after theforegoing materials on the LCD display are removed cause a transmittancereduction, fill the air gaps with a material such as an OCA whoserefractive index is close to those of the first LCD glass substrate andthe second LCD glass substrate, to increase an overall lighttransmittance, or coat a lower surface of the second LCD glass substratewith an AR antireflective film, to further increase the transmittanceand provide a good optical basis for an optical component such as thecamera.

Specifically, an air gap between the CG cover glass 400 and the LCDglass substrate 403 may be filled with an original OCA, and anotherlayer of the OCA may be further used or a liquid OCA may be used to fillthe gap.

Step 7: Combine and lay out the LCD display and the camera, an ambientlight sensor, an optical proximity sensor, or another component, toachieve various full screen effects.

It should be noted that step 1, step 2, and step 4 may be performedsimultaneously or separately, and an execution order is not limited.

According to this embodiment of the present invention, an existingliquid crystal may be used to fill an isolation region between the firstLCD glass substrate and the second LCD glass substrate without adding adevice or a process of another filling material.

Embodiment 3

In Embodiment 3 of the present invention, a local non-display region isdesigned in a display region on the LCD display. There is no liquidcrystal, metal cabling, TFT component, or another structure in theregion, and the region is removed, so that a large amount of lightnormally passes through the region, to achieve a local transparenteffect, as shown in FIG. 12.

Specifically, the LCD display manufacturing method may include thefollowing steps.

Step 1: Determine, based on a design requirement of the entire machine,a region that needs to be local transparent on the LCD display, andremove regions corresponding to the first polarizer and the secondpolarizer on the LCD display, where the regions may be removed beforethe polarizers are laminated on the first LCD glass substrate and thesecond LCD glass substrate or the regions may be removed together withthe first LCD glass substrate and the second LCD glass substrate afterthe polarizers are laminated on the first LCD glass substrate and thesecond LCD glass substrate. The transparent region may be completelyinside the display region or on an edge of the display region.

Step 2: Skip, based on the designed transparent region, processing anon-transparent material layer such as the CF 404, the TFT component406, and metal routing corresponding to the region during manufacturingof the LCD liquid crystal display, and during processing of the CF 404and the TFT 406 corresponding to the transparent region, directly skipprocessing the region by designing a mask. Row-column cabling that couldexist and that is interrupted by the region may be arranged around theregion, and therefore, a non-transparent region with a specific width isformed. Alternatively, the row-column cabling that is interrupted may beindependently arranged, and the cabling is separately led out from anearby left/right side or upper/lower side, to reduce an impact on anarea of the transparent region.

Step 3: Process a sealing adhesive or another sealing material on aperiphery of the transparent region on the first LCD glass substrate andthe second LCD glass substrate, so that there is no liquid crystal in aregion isolated by using the sealing material; use a sealing material oran ink applied to a backside of the CG cover glass to shelter a cablingregion; and completely remove the transparent region from the display byusing a processing method such as using a cutting wheel or lasercutting.

Step 4: Because the backlight module of the LCD display isnon-transparent, hollow out a part corresponding to the transparentregion during designing of the backlight module, and partially extend acomponent body of a component such as a camera into a hollow-out partbased on a thickness of the hollow-out part, to reduce a thickness ofthe entire machine.

Step 5: Because light is partially reflected on screens for which adifference between refractive indexes is relatively large, and atransmittance is reduced, coat an inner side of the CG cover glass 400of the LCD with an AR antireflective film, to further increase atransmittance and provide a good optical basis for an optical componentsuch as the camera.

It should be noted that an OCA between the CG cover glass 400 and thefirst LCD glass substrate and an OCA between the first LCD glasssubstrate and the second LCD glass substrate may also be removed fromthe transparent region.

Step 6: Combine and lay out the camera, an ambient light sensor, anoptical proximity sensor, or another component, to achieve a full screeneffect.

It should be noted that step 1, step 2, and step 4 may be performedsimultaneously or separately, and an execution order is not limited.

Technical effects of Embodiment 3 of the present invention are asfollows: there is no need to fill an air gap between the CG glass coverand the first LCD glass substrate, and a thickness of the display in thetransparent region may be further used by another component, therebyreducing an overall thickness.

According to the embodiments of the present invention, a structure ofthe LCD display is designed to implement local transparency, so thatoutside light can enter components such as the camera, the ambient lightsensor, the optical sensor, and the optical fingerprint sensor that aredisposed under the LCD display, and in combination with layoutoptimization of components such as the camera and a receiver, astructure in which the components and another component are disposedunder the display is implemented, the screen-to-body ratio is greatlyincreased, and the full screen effect is achieved.

The steps in the method or algorithm described in the embodimentsdisclosed in this specification may be implemented by hardware, asoftware module executed by the processor, or a combination of hardwareand software. The software module may reside in a random-access memory(RAM), a memory, a read-only memory (ROM), an electrically programmableROM, an electrically erasable programmable ROM, a register, a hard disk,a removable disk, a CD-ROM, or any other form of storage medium known inthe art.

In the foregoing specific implementations, the objective, technicalsolutions, and benefits of the present invention are further describedin detail. It should be understood that the foregoing descriptions aremerely specific implementations of the present invention, but are notintended to limit the protection scope of the present invention. Anymodification, equivalent replacement, or improvement made withoutdeparting from the spirit and principle of the present invention shallfall within the protection scope of the present invention.

1. An electronic device, comprising: a liquid-crystal display (LCD)comprising a cover glass (CG), a first glass substrate, a color film(CF) layer, a thin-film transistor (TFT) layer, a second glasssubstrate, and a backlight sequentially formed in a stack, wherein atleast the CF layer, the TFT layer, and the backlight comprise throughholes to form a light channel in the LCD; and an optical componentcompletely or partially disposed at a position in the backlight, coveredby the CG, and configured to receive ambient light that passes throughthe light channel from outside of the electronic device.
 2. Theelectronic device of claim 1, wherein the optical component is furtherdisposed beneath the through holes in the CF and the TFT layer.
 3. Theelectronic device of claim 1, wherein the second glass substrate furthercomprises the through holes, and wherein the optical component isfurther completely or partially disposed in the second glass substrate.4. The electronic device of claim 1, wherein the first glass substrateand the second glass substrate further comprise the through holes, andwherein the optical component is further completely or partiallydisposed in the first glass substrate and the second glass substrate. 5.The electronic device of claim 1, wherein the LCD further comprises ametal line, and wherein the metal line is distributed around the lightchannel and is between the TFT layer and the CF layer.
 6. The electronicdevice of claim 5, wherein the CG comprises an inner surface, whereinthe light channel comprises a circumference, wherein the electronicdevice further comprises a material that shields the metal line, whereinthe material is disposed on the inner surface and is disposed around thecircumference, and wherein the material is configured to prevent liquidcrystal leakage.
 7. The electronic device of claim 1, wherein the CGcomprises a lower surface, wherein the LCD further comprises a firstpolarizer and a second polarizer, and wherein the first polarizer, thefirst glass substrate, the CF, the TFT layer, the second glasssubstrate, the second polarizer, and the backlight are sequentiallyformed on the lower surface.
 8. The electronic device of claim 1,wherein the first glass substrate comprises a lower surface, wherein thesecond glass substrate comprises an upper surface, and wherein theelectronic device further comprises a first iridium titanium oxide (ITO)material layer formed on the lower surface and a second ITO materiallayer formed on the upper surface.
 9. The electronic device of claim 1,wherein the optical component comprises an optical fingerprint sensor, afront camera, an optical proximity sensor, a structured light sensor, aninfrared laser transmitter, or an ambient light sensor.
 10. Theelectronic device of claim 1, wherein the LCD comprises a rectangulardisplay region having a length-to-width ratio of 16:9 or 18:9.
 11. Aliquid crystal display (LCD), comprising: a stack comprising a coverglass (CG), a first glass substrate, a color film (CF) layer, a thinfilm transistor (TFT) layer, a second glass substrate, and a backlight;and a light channel formed in the stack by through holes providedthrough at least the CF layer, the TFT layer, and the backlight andconfigured to receive and pass ambient light.
 12. The LCD of claim 11,wherein the through holes are further provided through the second glasssubstrate.
 13. The LCD of claim 11, wherein the through holes arefurther provided through the first glass substrate and the second glasssubstrate.
 14. The LCD of claim 11, further comprising a metal line, andwherein the metal line is distributed around the light channel and isbetween the TFT layer and the CF layer.
 15. The LCD of claim 14, whereinthe CG comprises an inner surface, wherein the light channel comprises acircumference, wherein the LCD further comprises a material that shieldsthe metal line, wherein the material is disposed on the inner surfaceand is disposed around the circumference, and wherein the material isconfigured to prevent liquid crystal leakage.
 16. The LCD of claim 11,further comprising a first polarizer and a second polarizer, wherein theCG comprises a lower surface, and wherein the first polarizer, the firstglass substrate, the CF, the TFT layer, the second glass substrate, thesecond polarizer, and the backlight are sequentially formed on the lowersurface.
 17. The LCD of claim 11, further comprising a first iridiumtitanium oxide (ITO) material layer and a second ITO material layer,wherein the first glass substrate comprises a lower surface, wherein thesecond glass substrate comprises an upper surface, wherein the first ITOmaterial layer is formed on the lower surface, and wherein the secondITO material layer is formed on the upper surface.
 18. The LCD of claim11, further comprising a rectangular display region having alength-to-width ratio of 16:9 or 18:9.
 19. An electronic device,comprising: a liquid crystal display (LCD) comprising a cover glass(CG), a first glass substrate, a color film (CF) layer, a thin filmtransistor (TFT) layer, a second glass substrate, and a backlightsequentially formed in a stack, wherein at least through the CF layer,the TFT layer, and the backlight comprises through holes forming a lightchannel in the LCD; and a metal line distributed around the lightchannel and between the TFT layer and the CF layer.
 20. The electronicdevice of claim 19, further comprising an optical component completelyor partially disposed at a position in the backlight, covered by the CG,and configured to receive ambient light that passes through the lightchannel from outside of the electronic device, wherein the opticalcomponent comprises an optical fingerprint sensor, a front camera, anoptical proximity sensor, a structured light sensor, an infrared lasertransmitter, or an ambient light sensor.